PTAB did not err in its claim construction or obviousness findings in two IPRs filed by Westinghouse that challenged two Siemens patents.
Substantial evidence supported two Patent Trial and Appeal Board decisions following inter partes review of two related patents directed toward methods and systems for automatically activating a train warning device, including a horn, at various locations, the U.S. Court of Appeals for the Federal Circuit has held. The patent owner did not establish that the Board erred in its finding that the challenged claims were obvious in light of the prior art (Siemens Mobility, Inc. v. Iancu, September 8, 2020, Lourie, A.).
Case date: 08 September 2020
Case number: No. 19-1732
Court: United States Court of Appeals, Federal Circuit
A full summary of this case has been published on Kluwer IP Law.
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